JEE Mains · Chemistry · STD 11 - 7. Redox reactions
Consider the following equations: \(2 Fe ^{2+}+ H _{2} O _{2} \rightarrow x A + y B\) (in basic medium) \(2 MnO _{4}^{-}+6 H ^{+}+5 H _{2} O _{2} \rightarrow x ^{\prime} C + y ^{\prime} D + z ^{\prime} E\) (in acidic medium) The sum of the stoichiometric coefficients \(x , y , x ^{\prime}, y ^{\prime}\) and \(z ^{\prime}\) for products \(A , B , C , D\) and \(E ,\) respectively, is............
- A \(0\)
- B \(5\)
- C \(2\)
- D \(19\)
Answer & Solution
Correct Answer
(D) \(19\)
Step-by-step Solution
Detailed explanation
\(\left[ Fe ^{2+} \rightarrow Fe ^{3+}+ e ^{-}\right] \times 2\) \(\frac{ H _{2} O _{2}+2 e ^{-} \rightarrow 2 HO ^{\ominus}}{2 Fe ^{2+}+ H _{2} O _{2} \rightarrow 2 Fe ^{3+}+2 HO _{(q\omega)}^{\ominus}}\) \(x =2 \quad y =2\)…
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